Robert Mills / Mbed 2 deprecated SunriseAlarm

A sunrise alarm clock controlled through serial designed to run on a LPC 1768 and is currently being modified to run on a Nucleo board

Dependencies:   RTC mbed

main.cpp@4:f2f25ca84b32, 2015-08-16 (annotated)

Committer:
propellerhead
Date:
Sun Aug 16 15:19:20 2015 +0000
Revision:
4:f2f25ca84b32
Parent:
2:223c142956c6 
Changed pin-outs for the nucleo

Who changed what in which revision?

UserRevisionLine numberNew contents of line
propellerhead 0:ea21a4715fed 1 #include "mbed.h"
propellerhead 1:dcd847fa6def 2 #include "RTC.h"
propellerhead 0:ea21a4715fed 3
propellerhead 2:223c142956c6 4 PwmOut reds(D7);
propellerhead 2:223c142956c6 5 PwmOut greens(D6);
propellerhead 2:223c142956c6 6 PwmOut yellows(D5);
propellerhead 2:223c142956c6 7 PwmOut blues(D4);
propellerhead 0:ea21a4715fed 8
propellerhead 0:ea21a4715fed 9 Serial pc(USBTX, USBRX);
propellerhead 0:ea21a4715fed 10
propellerhead 1:dcd847fa6def 11 // Circular buffers for serial TX and RX data - used by interrupt routines
propellerhead 1:dcd847fa6def 12 const int buffer_size = 255;
propellerhead 1:dcd847fa6def 13 // might need to increase buffer size for high baud rates
propellerhead 1:dcd847fa6def 14 char tx_buffer[buffer_size+1];
propellerhead 1:dcd847fa6def 15 char rx_buffer[buffer_size+1];
propellerhead 1:dcd847fa6def 16 // Circular buffer pointers
propellerhead 1:dcd847fa6def 17 // volatile makes read-modify-write atomic
propellerhead 1:dcd847fa6def 18 volatile int tx_in=0;
propellerhead 1:dcd847fa6def 19 volatile int tx_out=0;
propellerhead 1:dcd847fa6def 20 volatile int rx_in=0;
propellerhead 1:dcd847fa6def 21 volatile int rx_out=0;
propellerhead 1:dcd847fa6def 22 // Line buffers for sprintf and sscanf
propellerhead 1:dcd847fa6def 23 char tx_line[80];
propellerhead 1:dcd847fa6def 24 char rx_line[80];
propellerhead 0:ea21a4715fed 25
propellerhead 1:dcd847fa6def 26 // State of the time setting
propellerhead 1:dcd847fa6def 27 volatile int timeSetting = 0;
propellerhead 1:dcd847fa6def 28 // Alarm state
propellerhead 1:dcd847fa6def 29 volatile int alarmActive = 0;
propellerhead 1:dcd847fa6def 30
propellerhead 1:dcd847fa6def 31 void Rx_interrupt(void);
propellerhead 1:dcd847fa6def 32 void minTick(void);
propellerhead 1:dcd847fa6def 33 void alarmRoutine(void);
propellerhead 1:dcd847fa6def 34 void lightSequence(void);
propellerhead 1:dcd847fa6def 35 int redMs = 0;
propellerhead 1:dcd847fa6def 36 int greenMs = 0;
propellerhead 1:dcd847fa6def 37 int yellowMs = 0;
propellerhead 1:dcd847fa6def 38 int blueMs = 0;
propellerhead 1:dcd847fa6def 39
propellerhead 1:dcd847fa6def 40 int main()
propellerhead 1:dcd847fa6def 41 {
propellerhead 2:223c142956c6 42
propellerhead 0:ea21a4715fed 43 pc.baud(9600);
propellerhead 0:ea21a4715fed 44 reds.period_ms(1);
propellerhead 0:ea21a4715fed 45 greens.period_ms(1);
propellerhead 0:ea21a4715fed 46 yellows.period_ms(1);
propellerhead 0:ea21a4715fed 47 blues.period_ms(1);
propellerhead 1:dcd847fa6def 48
propellerhead 1:dcd847fa6def 49 reds.pulsewidth_us(redMs);
propellerhead 1:dcd847fa6def 50 greens.pulsewidth_us(greenMs);
propellerhead 1:dcd847fa6def 51 yellows.pulsewidth_us(yellowMs);
propellerhead 1:dcd847fa6def 52 blues.pulsewidth_us(blueMs);
propellerhead 1:dcd847fa6def 53
propellerhead 0:ea21a4715fed 54 pc.attach(&Rx_interrupt, Serial::RxIrq);
propellerhead 1:dcd847fa6def 55
propellerhead 0:ea21a4715fed 56 set_time(1256729737); // Set RTC time to Wed, 28 Oct 2009 11:35:37
propellerhead 0:ea21a4715fed 57
propellerhead 1:dcd847fa6def 58 RTC::attach(&minTick, RTC::Minute);
propellerhead 2:223c142956c6 59 while(1)sleep();
propellerhead 0:ea21a4715fed 60 return 0;
propellerhead 0:ea21a4715fed 61 }
propellerhead 0:ea21a4715fed 62
propellerhead 1:dcd847fa6def 63 void Rx_interrupt()
propellerhead 1:dcd847fa6def 64 {
propellerhead 1:dcd847fa6def 65 while (pc.readable()) {
propellerhead 1:dcd847fa6def 66 rx_buffer[rx_in] = pc.getc();
propellerhead 1:dcd847fa6def 67 // Uncomment to Echo to USB serial to watch data flow
propellerhead 1:dcd847fa6def 68 pc.putc(rx_buffer[rx_in]);
propellerhead 1:dcd847fa6def 69 if(!rx_in) {
propellerhead 1:dcd847fa6def 70 if(rx_buffer[rx_in]=='a') {
propellerhead 1:dcd847fa6def 71 timeSetting = 1;
propellerhead 1:dcd847fa6def 72 printf("Enter alarm time as 'HH:MM' and press enter\r\n");
propellerhead 1:dcd847fa6def 73 rx_in = 0;
propellerhead 1:dcd847fa6def 74 return;
propellerhead 1:dcd847fa6def 75 } else if(rx_buffer[rx_in]=='t') {
propellerhead 1:dcd847fa6def 76 printf("Enter time and date as 'HH:MM:SS_dd/mm/yyyy' and press enter\r\n");
propellerhead 1:dcd847fa6def 77 timeSetting = 2;
propellerhead 1:dcd847fa6def 78 rx_in = 0;
propellerhead 1:dcd847fa6def 79 return;
propellerhead 1:dcd847fa6def 80 } else if(rx_buffer[rx_in]=='o') {
propellerhead 1:dcd847fa6def 81 printf("Lights off\r\n");
propellerhead 1:dcd847fa6def 82 redMs = 0;
propellerhead 1:dcd847fa6def 83 greenMs = 0;
propellerhead 1:dcd847fa6def 84 yellowMs = 0;
propellerhead 1:dcd847fa6def 85 blueMs = 0;
propellerhead 1:dcd847fa6def 86 rx_in = 0;
propellerhead 1:dcd847fa6def 87 timeSetting = 0;
propellerhead 1:dcd847fa6def 88 reds.pulsewidth_us(redMs);
propellerhead 1:dcd847fa6def 89 greens.pulsewidth_us(greenMs);
propellerhead 1:dcd847fa6def 90 yellows.pulsewidth_us(yellowMs);
propellerhead 1:dcd847fa6def 91 blues.pulsewidth_us(blueMs);
propellerhead 1:dcd847fa6def 92 alarmActive = 0;
propellerhead 2:223c142956c6 93 RTC::detach(RTC::Second);
propellerhead 1:dcd847fa6def 94 return;
propellerhead 1:dcd847fa6def 95 } else {
propellerhead 1:dcd847fa6def 96 if(!timeSetting) {
propellerhead 1:dcd847fa6def 97 printf("Press 'a' to set alarm and 't' to set the time\r\n");
propellerhead 1:dcd847fa6def 98 timeSetting = 0;
propellerhead 1:dcd847fa6def 99 rx_in = 0;
propellerhead 1:dcd847fa6def 100 return;
propellerhead 1:dcd847fa6def 101 }
propellerhead 1:dcd847fa6def 102 }
propellerhead 1:dcd847fa6def 103 } else {
propellerhead 1:dcd847fa6def 104 if(rx_buffer[rx_in]== '\r') {
propellerhead 1:dcd847fa6def 105 if(timeSetting == 1) {
propellerhead 1:dcd847fa6def 106 int hours, minutes;
propellerhead 1:dcd847fa6def 107 if(sscanf(rx_buffer, "%d:%d", &hours, &minutes)==2) {
propellerhead 1:dcd847fa6def 108 printf("Alarm Stored\r\n");
propellerhead 1:dcd847fa6def 109 } else {
propellerhead 1:dcd847fa6def 110 printf("Error\r\n");
propellerhead 1:dcd847fa6def 111 }
propellerhead 1:dcd847fa6def 112 tm newTime;
propellerhead 1:dcd847fa6def 113 newTime.tm_min = minutes;
propellerhead 1:dcd847fa6def 114 newTime.tm_hour = hours;
propellerhead 1:dcd847fa6def 115 RTC::alarm(&alarmRoutine, newTime);
propellerhead 1:dcd847fa6def 116 } else if(timeSetting == 2) {
propellerhead 1:dcd847fa6def 117 int hours, minutes, seconds, day, month, year;
propellerhead 1:dcd847fa6def 118 if(sscanf(rx_buffer, "%d:%d:%d_%d/%x/%d", &hours, &minutes,&seconds, &day, &month, &year)==6) {
propellerhead 1:dcd847fa6def 119 printf("Time Stored: %d:%d:%d_%d/%x/%d\r\n", hours, minutes,seconds, day, month, year);
propellerhead 1:dcd847fa6def 120 tm newTime;
propellerhead 1:dcd847fa6def 121 newTime.tm_sec = seconds;
propellerhead 1:dcd847fa6def 122 newTime.tm_min = minutes;
propellerhead 1:dcd847fa6def 123 newTime.tm_hour = hours;
propellerhead 1:dcd847fa6def 124 newTime.tm_mday = day;
propellerhead 1:dcd847fa6def 125 newTime.tm_mon = month;
propellerhead 1:dcd847fa6def 126 newTime.tm_year = year-1900;
propellerhead 1:dcd847fa6def 127
propellerhead 1:dcd847fa6def 128 time_t setTime = mktime(&newTime);
propellerhead 1:dcd847fa6def 129 set_time(setTime);
propellerhead 1:dcd847fa6def 130 } else {
propellerhead 1:dcd847fa6def 131 printf("Error\r\n");
propellerhead 1:dcd847fa6def 132 }
propellerhead 1:dcd847fa6def 133 }
propellerhead 1:dcd847fa6def 134 rx_in = 0;
propellerhead 1:dcd847fa6def 135 timeSetting = 0;
propellerhead 1:dcd847fa6def 136 return;
propellerhead 1:dcd847fa6def 137 }
propellerhead 1:dcd847fa6def 138 }
propellerhead 1:dcd847fa6def 139 }
propellerhead 1:dcd847fa6def 140 rx_in = (rx_in + 1) % buffer_size;
propellerhead 1:dcd847fa6def 141 }
propellerhead 1:dcd847fa6def 142
propellerhead 1:dcd847fa6def 143 void minTick()
propellerhead 1:dcd847fa6def 144 {
propellerhead 1:dcd847fa6def 145 time_t seconds = time(NULL);
propellerhead 1:dcd847fa6def 146 printf("Time as a basic string = %s\r\n", ctime(&seconds));
propellerhead 1:dcd847fa6def 147 printf("Press 'a' to set alarm and 't' to set the time\r\n");
propellerhead 1:dcd847fa6def 148 //reds.pulsewidth_us(redMs);
propellerhead 1:dcd847fa6def 149 //redMs+=100;
propellerhead 1:dcd847fa6def 150 //if(!(redMs-1100)) {
propellerhead 1:dcd847fa6def 151 // redMs = 0;
propellerhead 1:dcd847fa6def 152 //}
propellerhead 1:dcd847fa6def 153 }
propellerhead 1:dcd847fa6def 154 void alarmRoutine(){
propellerhead 1:dcd847fa6def 155 RTC::attach(&lightSequence, RTC::Second);
propellerhead 1:dcd847fa6def 156 printf("ALARM!!!\r\n");
propellerhead 1:dcd847fa6def 157 }
propellerhead 1:dcd847fa6def 158 void lightSequence(){
propellerhead 4:f2f25ca84b32 159 if(redMs <= 1000){
propellerhead 2:223c142956c6 160 redMs+=3;
propellerhead 1:dcd847fa6def 161 reds.pulsewidth_us(redMs);
propellerhead 4:f2f25ca84b32 162 }else if (yellowMs <= 1000){
propellerhead 2:223c142956c6 163 yellowMs+=3;
propellerhead 1:dcd847fa6def 164 yellows.pulsewidth_us(yellowMs);
propellerhead 4:f2f25ca84b32 165 }else if (greenMs <= 1000){
propellerhead 2:223c142956c6 166 greenMs+=3;
propellerhead 1:dcd847fa6def 167 greens.pulsewidth_us(greenMs);
propellerhead 4:f2f25ca84b32 168 }else if (blueMs <= 1000){
propellerhead 2:223c142956c6 169 blueMs+=1;
propellerhead 1:dcd847fa6def 170 blues.pulsewidth_us(blueMs);
propellerhead 1:dcd847fa6def 171 }else{
propellerhead 1:dcd847fa6def 172 alarmActive = 0;
propellerhead 1:dcd847fa6def 173 RTC::detach(RTC::Second);
propellerhead 1:dcd847fa6def 174 }
propellerhead 0:ea21a4715fed 175 }